Carcinoma in general, what is it?

what is happening to the human body

Carcinoma is the medical term for cancer.

Body cells can mutate and become cancerous.

Cancer cells tend to grow much faster than normal cells, are usually larger, do not carry out the regular functions of normal cells, and do not have the growth control that normal cells have.

After a while the cells loose the ability to adhere to each other and the cancer cells break off and migrate to other parts of the body where they start a new cancer. This stage of migration is known as metastasis

Carcinoma is any cancer that arises from epithelial cells. It is malignant by definition: carcinomas invade surrounding tissues and organs, and may spread to lymph nodes and distal sites (metastasis). This group represent the most common cancers, including the common forms of breast, prostate, lung and colon cancer.

http://en.wikipedia.org/wiki/Carcinoma

carcinoma
In medicine, carcinoma It is malignant by definition: carcinomas invade surrounding tissues and organs, and may spread to lymph nodes and distal sites (metastasis). Carcinoma in situ (CIS) is a pre-malignant condition, in which cytological signs of malignancy are present, but there is no histological evidence of invasion through the epithelial basement membrane.


Classification of carcinoma
Carcinoma, like all neoplasia, is classified by its histopathological appearance. Adenocarcinoma and squamous cell carcinoma, two common descriptive terms for tumours, reflect the fact that these cells may have glandular or squamous cell appearances respectively. Severely anaplastic tumours might be so undifferentiated that they do not have a distinct histological appearance (undifferentiated carcinoma).

Sometimes a tumour is referred to by the presumptive organ of the primary (eg carcinoma of the prostate) or the putative cell of origin (hepatocellular carcinoma, renal cell carcinoma).-

It causes DNA mutation. Takes over the functioning of DNA so when it is reproduced, it has new programming.